Games like Heart of the Machine on Steam

For those who prefer not to search, lists of the most played, top deals and best free games like Heart of the Machine are available at the bottom of the page.

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Terraformers: First Steps on Mars Terraformers: First Steps on Mars is a free prologue of Terraformers, featuring an exclusive challenge to lead humanity's first attempt at settling the Red Planet.

Similarity 47%
Price Free to play
Rating 8.4
Release 23 Oct 2021
Caesar™ IV Starting as governor of a newly formed province in the Roman Empire your goal is simple: advance up the empire's political ladder to become the next Caesar.

Similarity 47%
Price 9.99€
Rating 6.8
Release 29 Aug 2016
Mad Tower Tycoon Design your own skyscraper with more than 100 Floors. Rent offices, apartments or shops and build a financially lucrative skyscraper. Build cinemas, bars or a theater to satisfy your visitors and create an effective transport system with elevators and stairs.

Similarity 47%
Price 14.99€
Rating 7.4
Release 14 Jan 2020
Total War: WARHAMMER Addictive turn-based empire-building with colossal, real-time battles, all set in a world of legendary heroes, giant monsters, flying creatures and storms of magical power.

Similarity 47%
Price -90% 6.28€
Rating 7.7
Release 24 May 2016
Godhood Create your Religion, raise your Disciples, and guide them to bring you glory! Inspire growth in your Disciples so they may challenge the false gods and convert their followers. Defeat your rivals, and become the One Truth!

Similarity 47%
Price 24.99€
Rating 6.9
Release 11 Aug 2020
Eador. Masters of the Broken World Eador is a universe made of countless shards of land drifting in the Great Nothing. Each of the shards is a little world unto itself, with geography and denizens of its own. The power over the shards is bitterly contested by Masters, the immortal beings mortals believe to be gods.

Similarity 47%
Price 18.99€
Rating 6.7
Release 19 Apr 2013
Medieval II: Total War™ Kingdoms Medieval II: Total War Kingdoms is the official expansion to last year's award-winning Medieval II: Total War, presenting players with all-new territories to explore, troops to command, and enemies to conquer.

Similarity 47%
Price -80% 4.99€
Rating 8.9
Release 28 Aug 2007
Railway Empire 2 Don the coat of a clever entrepreneur, take over a small railway company in the early 1800s and turn your steam engines into the workhorses of the economy. Grow your company into the largest railway company of the continent and outsmart your competitors.

Similarity 47%
Price -74% 13.23€
Rating 7.0
Release 25 May 2023
SCP Strategy Take control of the SCP Foundation. For the general good, find, contain, and protect SCP objects. Develop your foundation and protect it from hostile organizations, in the last resort destroy them and capture SCP objects held there.

Similarity 47%
Price 6.89€
Rating 7.7
Release 05 May 2022
Game Dev Tycoon In Game Dev Tycoon you replay the history of the gaming industry by starting your own video game development company in the 80s. Create best selling games. Research new technologies and invent new game types. Become the leader of the market and gain worldwide fans.

Similarity 47%
Price -74% 2.48€
Rating 9.3
Release 29 Aug 2013
Smart Factory Tycoon: Beginnings This is a free version of Smart Factory Tycoon, a game inspired by Little Big Workshop introducing the first productions. Smart Factory Tycoon is a tycoon management game where you design your dream factory with robots, plan all steps of production, research new technologies and become a tycoon!

Similarity 47%
Price Free to play
Rating 7.3
Release 05 Jan 2022
Capitalism 2 Create and control the business empire of your dreams. This in-depth strategy game covers almost every aspect of business that could be encountered in the real world.

Similarity 47%
Price -75% 2.57€
Rating 7.7
Release 01 Aug 2017
Painters Guild Painters Guild is a management sim where you control an art academy in the Italian Renaissance. Paint artwork as beautiful as the Mona Lisa. Hire painters like Leonardo da Vinci and millions of randomly generated ones. Expand and customize your guild with furniture and more.

Similarity 47%
Price -95% 0.55€
Rating 6.5
Release 01 Sep 2015
Age of Wonders III Age of Wonders III is the long anticipated sequel to the award-winning strategy series. Delivering a unique mix of Empire Building, Role Playing and Warfare, Age of Wonders III offers the ultimate in turn-based fantasy strategy for veterans of the series and new players alike!

Similarity 47%
Price -99% 0.43€
Rating 7.9
Release 31 Mar 2014
Yet Another Research Dog The research dog is a newly graduated Ph.D.. His life-long dream is to become a great scientist, but the fortune is not on his side. After years of hard working, he is finally offered an intern position in a random lab. However, the job is not that easy and happy as he expected.

Similarity 47%
Price 0.79€
Rating 7.9
Release 02 Feb 2018
Sid Meier's Alpha Centauri™ Planetary Pack Sid Meier's Alpha Centauri™ Planetary Pack includes the original Alpha Centauri and the expansion, Alien Crossfire.

Similarity 47%
Price 4.99€
Rating 8.5
Release 07 Mar 2024
Close Combat - Gateway to Caen Close Combat: Gateway to Caen is a great release in the critically-acclaimed Close Combat series. Gateway to Caen focuses on the largest, concentrated British offensive since the Normandy landings in an attempt to penetrate the German lines west of Caen and cross the Odon River to get the stalled advance moving again.

Similarity 46%
Price -35% 26.58€
Rating 6.7
Release 06 Jun 2014
Marble Age: Remastered Marble Age is a turn-based historical strategy where your task is to turn a small Ancient Greek village into a flourishing Polis, powerful enough to conquer the known world!

Similarity 46%
Price 9.75€
Rating 7.9
Release 03 Nov 2020
Trimmer Tycoon Trimmer Tycoon is a fast survival game. You’re the new owner of a beard-trimming salon - Shavy. Customers start flowing in with absurd wishes for their beards. Can you satisfy their beardy dreams and keep up with the ever-increasing rent?

Similarity 46%
Price Free to play
Rating 6.6
Release 04 Nov 2016
Steel Armor: Blaze of War Steel Armor: Blaze of War is realistic tank simulator with tactical elements. The game models Soviet T-62 tank and US M60A1 tank in detail. Each tank has interactive cockpit with crew. Player controls a tank, and commands a tank platoon and attached forces in 4 large scale dynamic campaigns.

Similarity 46%
Price 27.99€
Rating 7.8
Release 05 Mar 2015
Little Big Workshop Manage your workers, stations, machines and create awesome stuff as your little big workshop grows into your dream factory!

Similarity 46%
Price -97% 0.66€
Rating 8.1
Release 17 Oct 2019
RollerCoaster Tycoon® 3: Complete Edition Build the park of a lifetime and rediscover the critically acclaimed rollercoaster simulation bestseller. Feel the thrill of a genre-defining classic, complete with two huge expansion packs.

Similarity 46%
Price 19.99€
Rating 8.4
Release 24 Sep 2020
Let's School Dive into the exhilarating role of a headmaster entrusted to revive your alma mater! Beyond just bricks and mortar, train teachers, recruit students. Sculpt your school into a unique educational haven! Let's School!

Similarity 46%
Price -67% 6.27€
Rating 9.0
Release 26 Jul 2023
Rebel Inc: Escalation A unique and deeply engaging political/military strategic simulation from the creator of Plague Inc. Balance competing civilian and military priorities and deal with a deadly insurgency in order to stabilise a war-torn country.

Similarity 46%
Price -94% 0.89€
Rating 8.0
Release 13 Oct 2021

Most played games like Heart of the Machine on Steam

Take a look at the top games like Heart of the Machine that are currently attracting the largest player bases on the Steam platform, as of June 16th 2025.

1. Hearts of Iron IV

Similarity 59% Victory is at your fingertips! Your ability to lead your nation is your supreme weapon, the strategy game Hearts of Iron IV lets you take command of any nation in World War II; the most engaging conflict in world history. Hearts of Iron IV is a strategy, world war ii and grand strategy game developed by Paradox Development Studio and published by Paradox Interactive. Released on June 06th 2016 has received 342,150 reviews of which 305,168 were positive and 36,982 were negative resulting in a rating of 8.8 out of 10. The game has hit the top spot as the #1 most played game like Heart of the Machine, thanks to its 30,016 peak concurrent players over the last day.
8.8
305,168
36,982

30,016
players

2. Sid Meier’s Civilization® VI

Similarity 72% Expand your empire, advance your culture and go head-to-head against history’s greatest leaders. Will your civilization stand the test of time? Sid Meier’s Civilization® VI is a strategy, turn-based strategy and multiplayer game developed by Firaxis Games, Aspyr (Mac) and Aspyr (Linux) and published by Aspyr (Mac), Aspyr (Linux) and 2K. Released on October 20th 2016 has received 349,920 reviews of which 304,053 were positive and 45,867 were negative resulting in a rating of 8.6 out of 10. While seeing 23,194 players online at once in the last 24 hours, this game is currently ranked #2 among games like Heart of the Machine based on player count.
8.6
304,053
45,867

23,194
players

3. Total War: WARHAMMER III

Similarity 53% The cataclysmic conclusion to the Total War: WARHAMMER trilogy is here. Rally your forces and step into the Realm of Chaos, a dimension of mind-bending horror where the very fate of the world will be decided. Will you conquer your Daemons… or command them? Total War: WARHAMMER III is a strategy, turn-based strategy and grand strategy game developed by Creative Assembly and Feral Interactive and published by Feral Interactive and SEGA. Released on February 16th 2022 has received 119,858 reviews of which 87,141 were positive and 32,717 were negative resulting in a rating of 7.2 out of 10. While seeing 17,986 players online at once in the last 24 hours, this game is currently ranked #3 among games like Heart of the Machine based on player count.
7.2
87,141
32,717

17,986
players

4. Crusader Kings III

Similarity 62% Love, fight, scheme, and claim greatness. Determine your noble house’s legacy in the sprawling grand strategy of Crusader Kings III. Death is only the beginning as you guide your dynasty’s bloodline in the rich and larger-than-life simulation of the Middle Ages. Crusader Kings III is a strategy, medieval and grand strategy game developed by Paradox Development Studio and published by Paradox Interactive. Released on September 01st 2020 has received 126,909 reviews of which 114,259 were positive and 12,650 were negative resulting in a rating of 8.9 out of 10. With 15,263 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Heart of the Machine.
8.9
114,259
12,650

15,263
players

5. Sid Meier's Civilization® V

Similarity 56% Create, discover, and download new player-created maps, scenarios, interfaces, and more! Sid Meier's Civilization® V is a turn-based strategy, strategy and turn-based game developed by Firaxis Games, Aspyr (Mac) and Aspyr (Linux) and published by Aspyr (Mac), Aspyr (Linux) and 2K. Released on September 23rd 2010 has received 204,265 reviews of which 195,724 were positive and 8,541 were negative resulting in an impressive rating of 9.5 out of 10. With 13,866 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Heart of the Machine.
9.5
195,724
8,541

13,866
players

6. Stellaris

Similarity 59% Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities. Stellaris is a space, grand strategy and strategy game developed by Paradox Development Studio and published by Paradox Interactive. Released on May 09th 2016 has received 185,433 reviews of which 159,527 were positive and 25,906 were negative resulting in a rating of 8.5 out of 10. With 13,555 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Heart of the Machine.
8.5
159,527
25,906

13,555
players

7. Europa Universalis IV

Similarity 71% Rule your land and dominate the world with unparalleled freedom, depth and historical accuracy. Write a new history of the world and build an empire for the ages. Europa Universalis IV is a grand strategy, strategy and historical game developed by Paradox Development Studio and Paradox Tinto and published by Paradox Interactive. Released on August 13th 2013 has received 134,436 reviews of which 116,432 were positive and 18,004 were negative resulting in a rating of 8.6 out of 10. With 13,299 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Heart of the Machine.
8.6
116,432
18,004

13,299
players

8. Cities: Skylines

Similarity 45% Cities: Skylines is a modern take on the classic city simulation. The game introduces new game play elements to realize the thrill and hardships of creating and maintaining a real city whilst expanding on some well-established tropes of the city building experience. Cities: Skylines is a city builder, simulation and building game developed by Colossal Order Ltd. and published by Paradox Interactive. Released on March 10th 2015 has received 275,770 reviews of which 256,362 were positive and 19,408 were negative resulting in an impressive rating of 9.2 out of 10. With 6,314 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Heart of the Machine.
9.2
256,362
19,408

6,314
players

9. Total War: ROME II - Emperor Edition

Similarity 64% Emperor Edition is the definitive edition of ROME II, featuring an improved politics system, overhauled building chains, rebalanced battles and improved visuals in both campaign and battleEmperor Edition contains all free feature updates since its release in 2013, which includes bug fixes, balancing, Twitch. Total War: ROME II - Emperor Edition is a strategy, historical and turn-based strategy game developed by Creative Assembly and Feral Interactive and published by SEGA and Feral Interactive. Released on September 02nd 2013 has received 88,173 reviews of which 73,559 were positive and 14,614 were negative resulting in a rating of 8.2 out of 10. With 5,155 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Heart of the Machine.
8.2
73,559
14,614

5,155
players

10. Victoria 3

Similarity 49% Paradox Development Studio invites you to build your ideal society in the tumult of the exciting and transformative 19th century. Balance the competing interests in your society and earn your place in the sun in Victoria 3, one of the most anticipated games in Paradox’s history. Victoria 3 is a grand strategy, economy and historical game developed by Paradox Development Studio and published by Paradox Interactive. Released on October 25th 2022 has received 52,618 reviews of which 35,043 were positive and 17,575 were negative resulting in a rating of 6.6 out of 10. With 4,601 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Heart of the Machine.
6.6
35,043
17,575

4,601
players

Best deals on games like Heart of the Machine on Steam

Discover fantastic savings with the best discounts on a variety of games like Heart of the Machine available on Steam right now, updated on June 16th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Heart of the Machine.

1. Old World

Similarity 95% Old World is a revolutionary new historical strategy game where you lead your dynasty over generations of rule against rival kings and queens. Wage massive wars, manage your court, and build a dynasty — or watch your empire crumble to dust. What legacy will you leave behind? Old World is a strategy, simulation and 4x game developed by Mohawk Games and published by Hooded Horse. Released on May 18th 2022 has received 4,673 reviews of which 3,841 were positive and 832 were negative resulting in a rating of 8.0 out of 10. Featuring a massive 99% discount, this game currently holds the #1 spot in the best deals for games like Heart of the Machine.
8.0
3,841
832

-99% 39.99€ 0.48€

2. Interstellar Space: Genesis

Similarity 49% Interstellar Space: Genesis is a turn-based space 4X strategy game in which you attempt to build a thriving galactic empire. Discover mysteries among the stars, colonize worlds, and engage enemies in tactical turn-based combat on your journey to becoming the ruler of the galaxy! Interstellar Space: Genesis is a strategy, indie and 4x game developed and published by Praxis Games. Released on July 25th 2019 has received 772 reviews of which 648 were positive and 124 were negative resulting in a rating of 7.9 out of 10. Thanks to its incredible 99% discount, this game is now the #2 best deal in games like Heart of the Machine.
7.9
648
124

-99% 27.99€ 0.46€

3. Age of Wonders III

Similarity 47% Age of Wonders III is the long anticipated sequel to the award-winning strategy series. Delivering a unique mix of Empire Building, Role Playing and Warfare, Age of Wonders III offers the ultimate in turn-based fantasy strategy for veterans of the series and new players alike! Age of Wonders III is a strategy, turn-based strategy and fantasy game developed by Triumph Studios and published by Paradox Interactive. Released on March 31st 2014 has received 12,578 reviews of which 10,093 were positive and 2,485 were negative resulting in a rating of 7.9 out of 10. Thanks to its incredible 99% discount, this game is now the #3 best deal in games like Heart of the Machine.
7.9
10,093
2,485

-99% 29.99€ 0.43€

4. Unity of Command II

Similarity 59% Unity of Command II is the sequel to one of the most critically acclaimed strategy games of all time; a game critics called 'the perfect gateway' into computer war games. Unity of Command II is a strategy, world war ii and simulation game developed by 2x2 Games and Croteam and published by 2x2 Games. Released on November 12th 2019 has received 1,896 reviews of which 1,529 were positive and 367 were negative resulting in a rating of 7.8 out of 10. Currently offered at a significant 99% discount, this title has earned the #4 position in the best deals for games like Heart of the Machine.
7.8
1,529
367

-99% 28.99€ 0.55€

5. Railroad Corporation

Similarity 50% Relive the pioneering spirit of the Golden Age of Steam by establishing your own railroad empire across 19th century North America. Bring settlements together, produce and trade goods and develop new technologies to stay ahead of the competition. Want more? RAILROAD CORPORATION 2 Out Now! Railroad Corporation is a strategy, trains and management game developed by Corbie Games and published by Iceberg Interactive. Released on November 18th 2019 has received 1,387 reviews of which 1,028 were positive and 359 were negative resulting in a rating of 7.1 out of 10. Currently offered at a significant 99% discount, this title has earned the #5 position in the best deals for games like Heart of the Machine.
7.1
1,028
359

-99% 35.10€ 0.44€

6. Distant Worlds 2

Similarity 68% Distant Worlds 2 is a vast, pausable real-time 4X space strategy game. Distant Worlds 2 is a strategy, simulation and 4x game developed by CodeForce and published by Slitherine Ltd.. Released on March 10th 2022 has received 3,237 reviews of which 2,304 were positive and 933 were negative resulting in a rating of 6.9 out of 10. Currently offered at a significant 99% discount, this title has earned the #6 position in the best deals for games like Heart of the Machine.
6.9
2,304
933

-99% 48.99€ 0.36€

7. Battlestar Galactica Deadlock

Similarity 46% In Battlestar Galactica Deadlock™ you’ll take command of the Colonial Fleet in defense of the Twelve Colonies during the First Cylon War. Lead many different types of ships in this 3D tactical game. Every decision counts, your strategy will be vital – can you ensure mankind’s survival? Battlestar Galactica Deadlock is a strategy, space and sci-fi game developed by Black Lab Games and published by Slitherine Ltd.. Released on August 31st 2017 has received 3,460 reviews of which 2,906 were positive and 554 were negative resulting in a rating of 8.1 out of 10. Currently offered at a significant 98% discount, this title has earned the #7 position in the best deals for games like Heart of the Machine.
8.1
2,906
554

-98% 38.99€ 1.00€

8. Warhammer 40,000: Gladius - Relics of War

Similarity 49% Warhammer 40,000: Gladius – Relics of War brings you to a world of terror and violence. Four factions will engage in a brutal war for dominance over the planet’s resources. In the first turn-based 4X strategy game set in Warhammer 40,000 you will lead one of four unique factions. Warhammer 40,000: Gladius - Relics of War is a strategy, warhammer 40k and 4x game developed by Proxy Studios and published by Slitherine Ltd.. Released on July 12th 2018 has received 14,975 reviews of which 12,195 were positive and 2,780 were negative resulting in a rating of 8.0 out of 10. Currently offered at a significant 98% discount, this title has earned the #8 position in the best deals for games like Heart of the Machine.
8.0
12,195
2,780

-98% 40.86€ 0.85€

9. Fantasy General II

Similarity 45% The fantasy wargaming classic is back! Lead powerful heroes and mighty armies into battle in this critically acclaimed turn-based strategy milestone. Level up and train your units and guide them through a gripping story campaign to decide the fate of a world on the brink of destruction. Fantasy General II is a strategy, turn-based strategy and fantasy game developed by Owned by Gravity and published by Slitherine Ltd.. Released on September 05th 2019 has received 1,235 reviews of which 1,025 were positive and 210 were negative resulting in a rating of 7.9 out of 10. Currently offered at a significant 98% discount, this title has earned the #9 position in the best deals for games like Heart of the Machine.
7.9
1,025
210

-98% 38.99€ 0.89€

10. Field of Glory II

Similarity 58% Field of Glory II is a turn-based tactical game set during the Rise of Rome from 280 BC to 25 BC. Field of Glory II is a strategy, simulation and turn-based strategy game developed by Byzantine Games and published by Slitherine Ltd.. Released on October 12th 2017 has received 1,157 reviews of which 960 were positive and 197 were negative resulting in a rating of 7.9 out of 10. Currently offered at a significant 98% discount, this title has earned the #10 position in the best deals for games like Heart of the Machine.
7.9
960
197

-98% 28.99€ 0.66€

Free games like Heart of the Machine on Steam

Check out this fantastic list of free-to-play games like Heart of the Machine you can enjoy on Steam right now, updated on June 16th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like Heart of the Machine.

1. Crusader Kings II

Similarity 54% Explore one of the defining periods in world history in an experience crafted by the masters of Grand Strategy. Crusader Kings II is a grand strategy, strategy and medieval game developed by Paradox Development Studio and published by Paradox Interactive. Released on February 14th 2012 has received 73,809 reviews of which 66,359 were positive and 7,450 were negative resulting in a rating of 8.9 out of 10. With 1,554 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Heart of the Machine.
8.9
66,359
7,450

1,554
players

2. SUPREMACY: WORLD WAR 3

Similarity 44% This Long Term Strategy Game lets you take control of the armed forces of your nation. Become responsible for its military expansion, technological research and economic development. Form alliances and wage total war for global dominance on the battlefields of World War 3. SUPREMACY: WORLD WAR 3 is a strategy, free to play and wargame game developed and published by Dorado Games. Released on March 15th 2018 has received 5,257 reviews of which 4,033 were positive and 1,224 were negative resulting in a rating of 7.5 out of 10. Thanks to its free to play tag and a daily player base of 469, this game has secured the #2 spot in the ranking of free games like Heart of the Machine.
7.5
4,033
1,224

469
players

3. Supremacy: 1914

Similarity 52% Take over the control of one of the mighty nations during the times of World War 1 in the biggest WW1 strategy game of all time. Conquer provinces, forge alliances and build up your economy in real-time on persistent maps. Build experimental weapons of World War 1 and become the one true superpower! Supremacy: 1914 is a strategy, free to play and war game developed and published by Bytro Labs GmbH. Released on July 16th 2019 has received 3,873 reviews of which 2,895 were positive and 978 were negative resulting in a rating of 7.3 out of 10. Thanks to its free to play tag and a daily player base of 361, this game has secured the #3 spot in the ranking of free games like Heart of the Machine.
7.3
2,895
978

361
players

4. Supremacy: Call of War 1942

Similarity 54% Take over the control of one of the mighty nations during the times of World War 2 in this persisting long-term strategy game. Conquer provinces, forge alliances and build up your economy in real-time. Research top secret weapons of World War 2 and become the one true superpower! Supremacy: Call of War 1942 is a strategy, free to play and world war ii game developed and published by Bytro Labs GmbH. Released on October 21st 2017 has received 5,832 reviews of which 4,168 were positive and 1,664 were negative resulting in a rating of 7.0 out of 10. Attracting a solid base of 321 players due to its free access, this strategy game has achieved the #4 position in the best free games like Heart of the Machine.
7.0
4,168
1,664

321
players

5. Order of Battle: World War II

Similarity 48% Order of Battle: World War II is a breath of fresh air for all strategy fans. It is a game that takes wargaming to a new level by upgrading every single game element and rebooting the genre for a new generation of players. Order of Battle: World War II is a strategy, free to play and world war ii game developed by The Artistocrats and published by Slitherine Ltd.. Released on April 30th 2015 has received 3,002 reviews of which 2,350 were positive and 652 were negative resulting in a rating of 7.6 out of 10. Attracting a solid base of 190 players due to its free access, this strategy game has achieved the #5 position in the best free games like Heart of the Machine.
7.6
2,350
652

190
players

6. Age of Conquest IV

Similarity 52% Age of Conquest is a turn-based grand strategy wargame. Age of Conquest IV is a free to play, strategy and turn-based strategy game developed and published by Noble Master LLC. Released on April 05th 2016 has received 2,748 reviews of which 2,242 were positive and 506 were negative resulting in a rating of 7.9 out of 10. The game currently holds the #6 spot among the most played free games like Heart of the Machine.
7.9
2,242
506

16
players

7. Simutrans

Similarity 46% Simutrans is a freeware and open-source transportation simulator. Your goal is to establish a successful transport company. Transport passengers, mail and goods by rail, road, ship, and even air. Interconnect districts, cities, public buildings, industries and tourist attractions. Simutrans is a simulation, free to play and trains game developed and published by The Simutrans Team. Released on May 24th 2016 has received 622 reviews of which 468 were positive and 154 were negative resulting in a rating of 7.2 out of 10. The game currently holds the #7 spot among the most played free games like Heart of the Machine.
7.2
468
154

16
players

8. Iron Order 1919

Similarity 56% An unique long-term strategy game with week-long matches with up to 101 players, set in the alternate reality of 1919. Iron Order 1919 is a strategy, simulation and alternate history game developed and published by Bytro Labs GmbH. Released on August 24th 2022 has received 381 reviews of which 267 were positive and 114 were negative resulting in a rating of 6.7 out of 10. The game currently holds the #8 spot among the most played free games like Heart of the Machine.
6.7
267
114

16
players

9. Demise of Nations

Similarity 54% Demise of Nations is a 4X turn-based grand strategy wargame covering the rise of Rome till the fall of modern civilization. Demise of Nations is a free to play, strategy and indie game developed and published by Noble Master LLC. Released on August 08th 2017 has received 523 reviews of which 423 were positive and 100 were negative resulting in a rating of 7.6 out of 10. The game currently holds the #9 spot among the most played free games like Heart of the Machine.
7.6
423
100

9
players

10. 中华三国志 the Three Kingdoms of China

Similarity 48% Three Kingdoms of China is a free, open-source single-machine strategy three-country game developed by the domestic folk team. The game does not have any commercial nature, hoping to create a dream of Three Kingdoms for the fans of the three kingdoms. 中华三国志 the Three Kingdoms of China is a free to play, indie and strategy game developed and published by 中三之家. Released on March 30th 2019 has received 1,344 reviews of which 1,155 were positive and 189 were negative resulting in a rating of 8.2 out of 10. The game currently holds the #10 spot among the most played free games like Heart of the Machine.
8.2
1,155
189

7
players